CN112517236A - Garnet concentrate recleaning process - Google Patents
Garnet concentrate recleaning process Download PDFInfo
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- CN112517236A CN112517236A CN202011318994.3A CN202011318994A CN112517236A CN 112517236 A CN112517236 A CN 112517236A CN 202011318994 A CN202011318994 A CN 202011318994A CN 112517236 A CN112517236 A CN 112517236A
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- garnet
- minerals
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- magnetic separation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
Abstract
The invention discloses a process for recleaning garnet concentrate, which comprises the following steps: the method comprises the steps of mixing raw garnet concentrate to form ore pulp with the concentration of 15-30%, carrying out ore dressing separation through two sections of spiral chutes, throwing out the green pyroxene in the garnet concentrate, carrying out primary-secondary-fine gravity separation on heavy mineral products through two shaking tables at two ends, further throwing out impurities and the green pyroxene in the garnet concentrate, filtering and drying the concentrate after gravity separation through the shaking tables through a belt filter and a drying furnace to obtain dry sand concentrate, inspecting and screening the dry sand concentrate by using a linear vibrating screen to remove large-particle minerals, finally carrying out a section of weak magnetic separation on undersize products, throwing out strong magnetic minerals in the concentrate, and separating the garnet from the non-magnetic separation minerals through a section of strong magnetic separation.
Description
Technical Field
The invention belongs to the technical field of mineral processing, and particularly relates to a process for recleaning garnet concentrate.
Background
The garnet is a nonmetal mineral product with wide application field and high application benefit. Garnet has the characteristics of sharp edges and corners of particles, large specific gravity and hardness, stable chemical property and the like, and has a plurality of applications in the aspects of sand blasting (or sand blowing or sand blasting), grinding and abrading, hydraulic cutting, filtering water, filling, public buildings, precise instruments, jewel development and the like. With the rapid development of national economy, the market demand for garnet and epidesmine is increasing.
However, 60-80 mesh garnet is generally used as a sand blasting abrasive material, but the cutting material and the matching of a sand pipe and a pump are different in production, if the garnet concentrate sand has high impurity content and uneven particle size, the garnet concentrate sand not only blocks the pipe and affects the cutting efficiency, but also seriously even causes defective products or waste products, and directly reduces the service life of the cutting head and affects the production. The granularity of the garnet concentrate is required to be uniform enough, the product quality is required to be higher, however, the impurity content of the garnet concentrate in the current society is high, the granularity is not uniform enough, the performance of the garnet cannot be well exerted, and the precision requirement of the market cannot be met.
Disclosure of Invention
The invention aims to provide a process for recleaning garnet concentrate, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a process for recleaning garnet concentrate comprises the following steps:
the method comprises the following steps: mixing various garnet concentrates to obtain ore pulp, wherein the concentration of the ore pulp is 15-30%, and the garnet concentrates enter a re-selection process after being mixed;
step two: carrying out first spiral chute reselection after mixing and sizing various types of garnet concentrates to obtain two products, namely heavy minerals and light minerals, wherein the main minerals of the heavy minerals mainly comprise a large amount of garnet and a small amount of epidesmine, and the main minerals of the light minerals mainly comprise a large amount of epidesmine and a small amount of garnet;
step three: conveying the heavy mineral products obtained in the step two to a second section of spiral chute by using a slurry pump for gravity separation, and obtaining two products of heavy minerals and light minerals after separation, wherein the main minerals of the heavy minerals mainly comprise a large amount of garnet and a small amount of epidesmine, and the main minerals of the light minerals are a large amount of epidesmine;
step four: the two light minerals obtained in the second step and the third step are mainly diopside, are combined to form diopside concentrate, and are conveyed to a diopside storage yard by a slurry pump;
step five: conveying the heavy minerals obtained in the step four to a reselection shaking table for reselection by using a slurry pump, wherein two products are generated after the shaking table is reselected, the main heavy minerals are garnet, part of garnet intergrowth is mixed in the heavy minerals, and the light minerals are impurities and hectorite;
step six: the heavy minerals obtained in the fifth step enter a second-stage shaking table again for fine selection, two products of heavy minerals and light minerals can be obtained after fine selection, the heavy minerals are the garnet concentrate sand after the fine selection, and the main minerals of the light minerals are impurities;
step seven: conveying the garnet fine sand generated in the sixth step to a filter by using a slurry pump for filtering, drying the filtered product with the water content lower than 15%, and directly returning the intergrowth to a production system for regrinding;
step eight: checking and screening the dried heavy mineral product, isolating coarse particles in the product, allowing the product under the screen to enter a primary dry type low-intensity magnetic separation magnetic field with the intensity of 6000GS to obtain a ferromagnetic mineral nonmagnetic product, performing secondary dry type high-intensity magnetic separation on the nonmagnetic product generated by the low-intensity magnetic separation with the intensity of 8500GS to obtain a weak magnetic product and a nonmagnetic product, wherein the weak magnetic separation product is garnet concentrate, and the nonmagnetic product is hectorite concentrate.
Preferably, the concentration of the garnet concentrate in the first step is controlled to be 15-30%.
Preferably, the ore dressing is carried out in the second step and the third step by adopting spiral chute equipment.
Preferably, step five and step six are reselected using a shaker device.
Preferably, the heavy mineral products selected by the shaking table in the seventh step are conveyed to a filter by a slurry pump for filtering, the filtered products with the water content lower than 12% are dried, and the intergrowth is directly returned to a production system for regrinding.
Preferably, the filtering and drying device in the seventh step is a belt filter and a drying oven.
Preferably, in the step eight, a drum-type dry magnetic separator is adopted for dry magnetic separation, a linear vibrating screen is adopted for inspection and screening equipment, primary dry magnetic separation is low-intensity magnetic separation, secondary dry magnetic separation is high-intensity magnetic separation, the magnetic field intensity during low-intensity magnetic separation is 6000GS, and the magnetic field intensity during high-intensity magnetic separation is 8500 GS.
Compared with the prior art, the invention has the beneficial effects that: the invention is used for the new process for re-selecting and improving the quality of the garnet concentrate sold in the market, and the garnet concentrate is subjected to size mixing and gravity separation, the product after gravity separation is subjected to inspection, screening and magnetic separation again, and the hectorite, impurities and coarse fraction in the garnet are removed, so that the garnet concentrate with more uniform mesh number, higher purity and brighter color can be obtained, and the market requirement can be better met.
Drawings
FIG. 1 is a schematic flow chart of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides a technical solution: a process for recleaning garnet concentrate is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: mixing various garnet concentrates to obtain ore pulp, wherein the concentration of the ore pulp is 15-30%, and the garnet concentrates enter a re-selection process after being mixed;
step two: carrying out first spiral chute reselection after mixing and sizing various types of garnet concentrates to obtain two products, namely heavy minerals and light minerals, wherein the main minerals of the heavy minerals mainly comprise a large amount of garnet and a small amount of epidesmine, and the main minerals of the light minerals mainly comprise a large amount of epidesmine and a small amount of garnet;
step three: conveying the heavy mineral products obtained in the step two to a second section of spiral chute by using a slurry pump for gravity separation, and obtaining two products of heavy minerals and light minerals after separation, wherein the main minerals of the heavy minerals mainly comprise a large amount of garnet and a small amount of epidesmine, and the main minerals of the light minerals are a large amount of epidesmine;
step four: the two light minerals obtained in the second step and the third step are mainly diopside, are combined to form diopside concentrate, and are conveyed to a diopside storage yard by a slurry pump;
step five: conveying the heavy minerals obtained in the step four to a reselection shaking table for reselection by using a slurry pump, wherein two products are generated after the shaking table is reselected, the main heavy minerals are garnet, part of garnet intergrowth is mixed in the heavy minerals, and the light minerals are impurities and hectorite;
step six: the heavy minerals obtained in the fifth step enter a second-stage shaking table again for fine selection, two products of heavy minerals and light minerals can be obtained after fine selection, the heavy minerals are the garnet concentrate sand after the fine selection, and the main minerals of the light minerals are impurities;
step seven: conveying the garnet fine sand generated in the sixth step to a filter by using a slurry pump for filtering, drying the filtered product with the water content lower than 15%, and directly returning the intergrowth to a production system for regrinding;
step eight: checking and screening the dried heavy mineral product, isolating coarse particles in the product, allowing the product under the screen to enter a primary dry type low-intensity magnetic separation magnetic field with the intensity of 6000GS to obtain a ferromagnetic mineral nonmagnetic product, performing secondary dry type high-intensity magnetic separation on the nonmagnetic product generated by the low-intensity magnetic separation with the intensity of 8500GS to obtain a weak magnetic product and a nonmagnetic product, wherein the weak magnetic separation product is garnet concentrate, and the nonmagnetic product is hectorite concentrate.
In this embodiment, preferably, the concentration of the garnet concentrate in the first step is controlled to be 15-30%.
In this embodiment, preferably, the ore dressing is performed in step two and step three by using spiral chute equipment.
In this embodiment, preferably, the shaking table device is used for the reselection in the fifth step and the sixth step.
In this embodiment, preferably, the heavy mineral product selected by the shaking table in the seventh step is conveyed to the filter by a slurry pump to be filtered, the filtered product with the water content lower than 12% is dried, and the intergrowth is directly returned to the production system to be reground.
In this embodiment, preferably, the filtering and drying device in the seventh step is a belt filter and a drying oven.
In this embodiment, preferably, in the step eight, a drum-type dry magnetic separator is used for dry magnetic separation, a linear vibrating screen is used for inspection and screening equipment, the primary dry magnetic separation is weak magnetic separation, the secondary dry magnetic separation is strong magnetic separation, the magnetic field strength during the weak magnetic separation is 6000GS, and the magnetic field strength during the strong magnetic separation is 8500 GS.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A process for recleaning garnet concentrate is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: mixing various garnet concentrates to obtain ore pulp, wherein the concentration of the ore pulp is 15-30%, and the garnet concentrates enter a re-selection process after being mixed;
step two: carrying out first spiral chute reselection after mixing and sizing various types of garnet concentrates to obtain two products, namely heavy minerals and light minerals, wherein the main minerals of the heavy minerals mainly comprise a large amount of garnet and a small amount of epidesmine, and the main minerals of the light minerals mainly comprise a large amount of epidesmine and a small amount of garnet;
step three: conveying the heavy mineral products obtained in the step two to a second section of spiral chute by using a slurry pump for gravity separation, and obtaining two products of heavy minerals and light minerals after separation, wherein the main minerals of the heavy minerals mainly comprise a large amount of garnet and a small amount of epidesmine, and the main minerals of the light minerals are a large amount of epidesmine;
step four: the two light minerals obtained in the second step and the third step are mainly diopside, are combined to form diopside concentrate, and are conveyed to a diopside storage yard by a slurry pump;
step five: conveying the heavy minerals obtained in the step four to a reselection shaking table for reselection by using a slurry pump, wherein two products are generated after the shaking table is reselected, the main heavy minerals are garnet, part of garnet intergrowth is mixed in the heavy minerals, and the light minerals are impurities and hectorite;
step six: the heavy minerals obtained in the fifth step enter a second-stage shaking table again for fine selection, two products of heavy minerals and light minerals can be obtained after fine selection, the heavy minerals are the garnet concentrate sand after the fine selection, and the main minerals of the light minerals are impurities;
step seven: conveying the garnet fine sand generated in the sixth step to a filter by using a slurry pump for filtering, drying the filtered product with the water content lower than 15%, and directly returning the intergrowth to a production system for regrinding;
step eight: checking and screening the dried heavy mineral product, isolating coarse particles in the product, allowing the product under the screen to enter a primary dry type low-intensity magnetic separation magnetic field with the intensity of 6000GS to obtain a ferromagnetic mineral nonmagnetic product, performing secondary dry type high-intensity magnetic separation on the nonmagnetic product generated by the low-intensity magnetic separation with the intensity of 8500GS to obtain a weak magnetic product and a nonmagnetic product, wherein the weak magnetic separation product is garnet concentrate, and the nonmagnetic product is hectorite concentrate.
2. The garnet concentrate recleaning process according to claim 1, characterized in that: in the first step, the concentration of the garnet concentrate is controlled to be 15-30%.
3. The garnet concentrate recleaning process according to claim 1, characterized in that: and step two and step three adopt spiral chute equipment to carry out ore dressing.
4. The garnet concentrate recleaning process according to claim 1, characterized in that: and step five and step six adopt shaking table equipment to reselect.
5. The garnet concentrate recleaning process according to claim 1, characterized in that: and (5) conveying the heavy mineral products selected by the shaking table in the step seven to a filter by using a slurry pump for filtering, drying the filtered products with the water content lower than 12%, and directly returning the intergrowth to a production system for regrinding.
6. The garnet concentrate recleaning process according to claim 1, characterized in that: and in the seventh step, the filtering and drying equipment is an adhesive tape type filter and a drying furnace.
7. The garnet concentrate recleaning process according to claim 1, characterized in that: and step eight, adopting a drum-type dry magnetic separator for dry magnetic separation, adopting a linear vibrating screen for inspection and screening equipment, wherein primary dry magnetic separation is low-intensity magnetic separation, secondary dry magnetic separation is high-intensity magnetic separation, the magnetic field intensity during the low-intensity magnetic separation is 6000GS, and the magnetic field intensity during the high-intensity magnetic separation is 8500 GS.
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| CN202011318994.3A CN112517236A (en) | 2020-11-23 | 2020-11-23 | Garnet concentrate recleaning process |
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| CN202011318994.3A CN112517236A (en) | 2020-11-23 | 2020-11-23 | Garnet concentrate recleaning process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996017022A1 (en) * | 1994-12-02 | 1996-06-06 | Vanadale Pty. Ltd. | Magnetic coating composition |
| CN109909061A (en) * | 2019-04-24 | 2019-06-21 | 连云港金红矿业有限公司 | A kind of efficient washing and screening plant of garnet and technique |
| CN109926194A (en) * | 2019-03-14 | 2019-06-25 | 中国地质科学院郑州矿产综合利用研究所 | Method for recovering garnet and green pyroxene in limonite |
| CN110614160A (en) * | 2019-10-09 | 2019-12-27 | 中国科学院地质与地球物理研究所 | Method for separating single mineral garnet from durite |
| CN209935262U (en) * | 2019-04-24 | 2020-01-14 | 连云港金红矿业有限公司 | Efficient garnet combined magnetic separation and screening device |
| CN111495576A (en) * | 2020-04-01 | 2020-08-07 | 北京矿冶科技集团有限公司 | Ore dressing method for separating and separating garnet ores with uneven embedded particle sizes in split flow mode |
-
2020
- 2020-11-23 CN CN202011318994.3A patent/CN112517236A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996017022A1 (en) * | 1994-12-02 | 1996-06-06 | Vanadale Pty. Ltd. | Magnetic coating composition |
| CN109926194A (en) * | 2019-03-14 | 2019-06-25 | 中国地质科学院郑州矿产综合利用研究所 | Method for recovering garnet and green pyroxene in limonite |
| CN109909061A (en) * | 2019-04-24 | 2019-06-21 | 连云港金红矿业有限公司 | A kind of efficient washing and screening plant of garnet and technique |
| CN209935262U (en) * | 2019-04-24 | 2020-01-14 | 连云港金红矿业有限公司 | Efficient garnet combined magnetic separation and screening device |
| CN110614160A (en) * | 2019-10-09 | 2019-12-27 | 中国科学院地质与地球物理研究所 | Method for separating single mineral garnet from durite |
| CN111495576A (en) * | 2020-04-01 | 2020-08-07 | 北京矿冶科技集团有限公司 | Ore dressing method for separating and separating garnet ores with uneven embedded particle sizes in split flow mode |
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Address after: 222000 No. 88, Fengquan Road, Anfeng Town, Donghai County, Lianyungang City, Jiangsu Province Applicant after: Jiangsu Jinhong New Material Co.,Ltd. Address before: 222000 west side of niu'an Road, Shanzhuang Industrial Zone, Anfeng Town, Donghai County, Lianyungang City, Jiangsu Province Applicant before: LIANYUNGANG JINHONG MINING Co.,Ltd. |
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Application publication date: 20210319 |